Question

A fruit seller brought 20 kg potatoes at ₹6 per kg and 30 kg potatoes at ₹7 per .at what rate per kg should he sell them to gain 25%

Answer 1

he will sell them at 8.25 per kg as 20 kg = rupees 6 per kg so 20 into 6 equals 120 rupees and 30 kg = rupees 7 per kg = 30 into 7 equals 210 per kg is equal to 120 + 210 = 330 rupees and 20 + 30 = 50 so 330 / 50 = 6.60 and 25% of 6.60 equals 1. 65 so 6.60 + 1.65 equals 8.25 so he will sell it at 8. To 5 rupees per kg